Have you started to use the liquid sander product? I seem to remember it being more like a thin gel - doesn't seem like that would spray. Is yours a light liquid like water?
– JPhi1618Mar 31 at 15:15

I'm no fan of chemical deglossers, they depend on your previous layer having a particular paint chemistry. I'm also no fan of masking, thus no fan of spraying. Rollers work fine; slow and steady wins the race.
– Harper - Reinstate MonicaMar 31 at 22:28

1 Answer
1

"Liquid Sand Paper" is a diluted form of the solvent used in gloss paints in the first place, Diethylene glycol monobutyl ether (DEG monobutyl ether). It also contains fine grains of silica (quartz) in suspension. It works by slightly dissolving the surface of the gloss paint and allowing the silica grains to embed themselves in it, which then allows the next layer of paint to adhere.

If you try to volatilize (spray) it, you would not only need high pressure to avoid having the silica clog things up, but it then becomes HIGHLY dangerous to inhale.